unusual test results: why would my T3 be high in... - Thyroid UK

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unusual test results

AustinHealeySprite profile image
9 Replies

why would my T3 be high in the range with T4 mid range?

After a few hard months of GP changing my meds I’m now back up to 175mcg of Levo.

Just had my results and they are nothing I’ve had before it’s always T4 above my T3 .Just wondering why and what might have caused this ?

TSH. 0.11 0.55-4.78

FT 4 18.7 11.5-22.7

FT3. 6 3.5-6.5

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AustinHealeySprite profile image
AustinHealeySprite
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9 Replies
SlowDragon profile image
SlowDragonAdministrator

can you add actual results

was test early morning, ideally just before 9am, only drink water between waking and test and last dose levothyroxine 24 hours before test

Are your vitamin levels now at good levels

AustinHealeySprite profile image
AustinHealeySprite in reply toSlowDragon

Hia

Yes test at right time also correct routine before testing

About to do some vitamin tests in next week

AustinHealeySprite profile image
AustinHealeySprite in reply toAustinHealeySprite

Test results added

SlowDragon profile image
SlowDragonAdministrator

Free T4 (fT4) 18.7 pmol/L (11.5 - 22.7) 64.3%

Free T3 (fT3) 6 pmol/L (3.5 - 6.5) 83.3%

Certainly seems unusual if only on levothyroxine

How long had you been back on 175mcg when tested

Retest again in 6-8 weeks?

AustinHealeySprite profile image
AustinHealeySprite

12 weeks

Could there be any other reasons why ?

GP wants a consultation I expect to try and lower levo on TSH reading ☹️

SlowDragon profile image
SlowDragonAdministrator in reply toAustinHealeySprite

What were you on before? 150mcg daily?

wait to get vitamin results before considering changing anything

You might need tiny dose reduction if Ft3 higher next test

Eg 167mcg twice week and 175mcg 5 days per week

AustinHealeySprite profile image
AustinHealeySprite

Started. 200 then 175 then 125 then 175 all in six months 😳

Will sort vits out soon

Thanks

SlowDragon profile image
SlowDragonAdministrator in reply toAustinHealeySprite

GP a Bull in china shop then

That was massive (ludicrous) reduction from 175mcg to 125mcg

Jaydee1507 profile image
Jaydee1507Administrator in reply toAustinHealeySprite

The maximum you should change dose by with Levo is 25mcgs.

If your GP is telling you to alter your dose by more than that you need to speak up and tell them that you will only change by 25mcgs maximum.

When fine tuning your dose you can go by as small a dose as 12.5mcgs or even less.

Keep coming back here, get private boods run along with vitamins, post your results for comments and we can get you where you need to be.

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